http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108179377-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C10-26 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C10-26 |
| filingDate | 2017-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108179377-B |
| titleOfInvention | A kind of composite gradient coating and preparation method thereof |
| abstract | The invention discloses a preparation method of a composite gradient coating. The tungsten-containing substrate is pretreated; raw materials containing yttrium, tungsten and molybdenum are ball-milled and mixed to form a slurry, which is uniformly coated on the surface of the tungsten-containing substrate , dried, then heat-treated in hydrogen, taken out after cooling, to obtain a tungsten-containing substrate with a tungsten-molybdenum composite layer formed on the surface; the tungsten-containing substrate with a tungsten-molybdenum composite layer formed on the surface was completely buried in a crucible with a silicidation agent Then, put the crucible into the atmosphere furnace, pass in the inert gas, then heat treatment, and take out after cooling to obtain the composite gradient coating on the surface of the tungsten-containing substrate. The preparation process of the invention is simple, the bonding force between the coating and the substrate and the coating can be effectively improved, and the high-temperature oxidation resistance and thermal shock resistance of the prepared composite gradient coating substrate can be greatly improved. The present invention also relates to a composite gradient coating obtained by the above method. |
| priorityDate | 2017-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.